serializable

Java provides me by <? extends class> a way of filtering the java classes that you can use to build in this case the new HashMap, for example: I can do that: Map<String,? extends Serializable> map1 = new HashMap<String,String>(); It is correct, because String implements Serializable, so the compiler let me do that. But when i try to do it: Map<String,GenericClass<? extends Serializable>> map2 = new HashMap<String, GenericClass<String>>(); Being the GenericClass as it: public class GenericClass<T> { . . . } The compiler throw an error saying: Type mismatch: cannot convert from HashMap<String

I have a couple objects, Location, in my app stored in an ArrayList and use parcelable to move these between activities. The code for the object looks like this: public class Location implements Parcelable{ private double latitude, longitude; private int sensors = 1; private boolean day; private int cloudiness; /* Måste ha samma ordning som writeToParcel för att kunna återskapa objektet. */ public Location(Parcel in){ this.latitude = in.readDouble(); this.longitude = in.readDouble(); this.sensors = in.readInt(); } public Location(double latitude, double longitude){ super(); this.latitude =

I am just learning how to develop for Android Wear, I have created a full screen Activity for Smart Watches and in my mobile part of the application I get some JSON data and create a list of custom objects from this. On my mobile app I show the information for these objects in a ListView. On the Wear piece of my application I want to show a limited version of this list, for example the top 3 from the list will be show on my full screen app on the Wearable. My problem is that there doesn't seem to be a way to send Parcelable Objects to Android Wear, there is no option to putParcelable in the

I am working on WCF service. My all class are already serialize using [Serializable] attribute but due to "k__BackingField" Property Naming problem I used DataContract and DataMember attribute. so Can i use both attribute together like following: [Serializable] [DataContract] public class User { [DataMember] public string Name { get; set; } [DataMember] public int UserID { get; set; } } is this correct? I also got similar solution here. C# automatic property deserialization of JSON Serializable and DataContract (not versus?) I found an article on MSDN according to this we can use both

I noticed the following occurrence in both Oracle and PostgreSQL. Considering we have the following database schema: create table post ( id int8 not null, title varchar(255), version int4 not null, primary key (id)); create table post_comment ( id int8 not null, review varchar(255), version int4 not null, post_id int8, primary key (id)); alter table post_comment add constraint FKna4y825fdc5hw8aow65ijexm0 foreign key (post_id) references post; With the following data: insert into post (title, version, id) values ('Transactions', 0, 1); insert into post_comment (post_id, review, version, id)

I've got a singe object which has three fields: two strings and a Drawable public class MyObject implements Serializable { private static final long serialVersionUID = 1L; public String name; public String lastName; public Drawable photo; public MyObject() { } public MyObject(String name, String lastName, Drawable photo) { this.name = name; this.lastName = lastName; this.photo = photo; } } What I'm trying to do, is to save an ArrayList of these objects to a file, but i keep getting a NotSerializableException 02-02 23:06:10.825: WARN/System.err(13891): java.io.NotSerializableException: android